铀尾矿中铀和镭的释放和迁移计算
发布时间：2018-11-15 07:27
【摘要】：采用考虑弥散的数学模型计算272厂铀尾矿中~(238)U、~(230)Th、~(226)Ra、~(210)Pb和~(210)Po的释放和迁移过程。结果表明:在300年的时间尺度上,272厂铀尾矿中的~(210)Po、~(230)Th、~(210)Pb不能到达距离200m处的水井;水井中~(238)U和~(226)Ra的活度浓度和累积活度均呈指数增长;~(238)U、~(226)Ra的活度浓度将分别经过10、50a左右超过《生活饮用水卫生标准》(GB 5749—2006)的总α放射性≤0.5Bq/L的要求。
[Abstract]:The release and migration processes of ~ (238) U ~ (230) Th,~ (226) Ra,~ (210) Pb and ~ (210) Po in uranium tailings of 272 plant are calculated by using a mathematical model considering dispersion. The results show that the ~ (210) Po,~ (230) Th,~ (210) Pb in uranium tailings of 272 plant can not reach the well 200 m from the time scale of 300 years. The activity concentration and cumulative activity of ~ (238) U and ~ (226) Ra increased exponentially. The activity concentration of ~ (238) U ~ (226) Ra will exceed the total 伪 -radioactivity 鈮，
本文编号：2332560
[Abstract]:The release and migration processes of ~ (238) U ~ (230) Th,~ (226) Ra,~ (210) Pb and ~ (210) Po in uranium tailings of 272 plant are calculated by using a mathematical model considering dispersion. The results show that the ~ (210) Po,~ (230) Th,~ (210) Pb in uranium tailings of 272 plant can not reach the well 200 m from the time scale of 300 years. The activity concentration and cumulative activity of ~ (238) U and ~ (226) Ra increased exponentially. The activity concentration of ~ (238) U ~ (226) Ra will exceed the total 伪 -radioactivity 鈮，
本文编号：2332560
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